Earto K637 Wireless Keyboard and Mouse Instruction Manual

2.4 GHz Wireless Backlit Keyboard and Mouse Combo

Note: Please read the manual carefully before using

Package Contents

1 x 2.4G Wireless Keyboard
1 x 2.4G Wireless Mouse
1 x 2.4G Receiver
1 x USB-C Charging cable
1 x USB C to B Adapter
1 x Silicone Keyboard Cover
1 x User Manual

Use Reminders

1. When the keyboard is not used for a long time, it is recommended to turn off the power to protect the battery life.
2. Do not use liquids to clean the keyboard directly. Clean the keyboard with an alcohol swab or similar volatile disinfectant.

Product Overview

Connection

1. Turn on the power switches of the keyboard and mouse.
2. Take out the USB receiver.
3. Plug the USB receiver into the computer.(The Type-C device interface needs to be equipped with a USB C-B converter)
4. The connection is successful.

Indicator Light

1. NUM indicator: Turn on Num Lock and display green.
2. Caps indicator: Turn on caps lock and display green.
3. Power indicator: Turn on the power of the keyboard, the light turns green for two seconds and then goes out.

Low battery warning: the light flashes slowly for 5 seconds when in use (one flash per second)

Function Keys

Tips: Please press the “Fn” + “F1-13” key combination to activate the function keys.

Backlight Switching

1. Press the to turn on the backlight of the keyboard.
2. Press to adjust the level of brightness.
3. Press key to choose the color of the backlight.

Mouse

Function Button

1. Wheel: Move the window up and down.

2. DPI Adjustment/Jiggler Switch:
   A: DPI adjustment button: the default is 1200 DPl, click to switch DPI(800-1200-1600-2000-800)
   B: Jiggler mode: control the computer not to sleep and the cursor slides automatically. Long press for 3 seconds to tun on/off.
   Operation method:
   Press the DPI button for 3 seconds the mouse will tum on the mouse iggier mode. The green indicator light will flash every three seconds.
   You can still work normally in the mouse jiggler mode.
   When you want to quit the mode, press the DPI button for 3 seconds again or unplug the receiver. The green indicator light will go off.

3. Left Mouse Button: Click the selected target, double-click to open the program.

4. Right Mouse Button: Click the pop-up menu.

5. Side Key 1: Web page forward.

6. Side Key 2: Backward the web page.

Sleep Mode

1. The keyboard will automatically enter sleep mode after 90 seconds of inactivity. When using the keyboard again, press any key and wait 2-3 seconds. The keyboard will automatically connect to the device.
2. The mouse will enter sleep mode if it is not used for 5 minutes. When using the mouse again, press any key and wait 2-3 seconds. The mouse will automatically connect to the device.

Charge

Charging Tips
When the keyboard is charging, the power light is always on in red, and when it is fully charged, the power light turns off.
When the mouse is charging, the red indicator light on the scroll wheel is constant, and it will automatically turn off when it is fully charged.
Low battery warning:
The keyboard power light flashes slowly for 5 seconds when in use.(one flash per second)
When moving the mouse or pressing a button, the green light on the scroll wheel flashes twice at intervals of about 1 second, and no indication is given when the mouse is not used.

Specifications

2.4G wireless Keyboard Parameters

2.4G wireless Mouse Parameters

Troubleshooting

Unable to connect the device
First, please fully charge the keyboard and mouse, unplug the receiver, restart the computer, and re-plug the receiver. If it still cannot be connected, please perform the following operations to repair it.

1. The keyboard cannot be connected
   Power on the keyboard, press “Esc+K”, the indicator light flashes rapidly.
   Insert the 2.4G USB receiver into the computer, within 10 seconds, place the keyboard 10 cm close to the receiver to pair, and the keyboard pairing is successful.

2. The mouse cannot be connected
   Plug the receiver into the computer, turn on the power of the mouse, press the right button + scroll wheel for more than 1 second at the same time.

Keyboard typing is delayed/not working

1. Make sure there are no 2.4g devices (such as routers) nearby interfering with the connection.
2. Make sure the keyboard battery is charged.
3. Make sure there are no all-metal enclosures that could shield the signal.
4. The computer runs too many tasks, the CPU memory is full, and the signal from the receiving end cannot be processed.

Mouse not working / Cursor lag

1. Please check the battery of the mouse, the low battery state will cause the cursor to be delayed. At this point, the mouse can be charged for 2 hours before use.
2. Adjust to the appropriate dpi parameter. (The mouse has four levels of dpi adjustable)
3. If a wired mouse is connected to your computer at the same time, please unplug the power cord. Failure to do so may result in a job driver conflict.
4. Make sure that your mouse is not used on materials with a good light-transmitting medium such as glass. (the mouse uses diodes for positioning, and materials such as glass will cause inaccurate positioning and delay)

Shortcut keys don’t work
Unplug the USB receiver and plug it back in again.

Keyboard and mouse not charging

1. Please confirm the charging status of the keyboard, charge it for 60 minutes, and then turn it on to see if the indicator light can flash normally:
   Steady red light charging status
   Light off – fully charged state
   Blinking red light – keyboard battery low

2. Please try another charging cable to check if it can be charged normally.

MAC System Alt is not mapped correctly, the system thinks that pressing Win.
At this time, you need to unplug the receiver and plug it in again, and the system will recognize the MAC system again.

End

Thank you so much for your support.
If there is any problem that cannot be solved, please feel free to contact us and we will try our best to help you.

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